FR2399537A1 - ROCK FOREST - Google Patents

ROCK FOREST

Info

Publication number
FR2399537A1
FR2399537A1 FR7822863A FR7822863A FR2399537A1 FR 2399537 A1 FR2399537 A1 FR 2399537A1 FR 7822863 A FR7822863 A FR 7822863A FR 7822863 A FR7822863 A FR 7822863A FR 2399537 A1 FR2399537 A1 FR 2399537A1
Authority
FR
France
Prior art keywords
drill
dust
groove
axis
rib
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7822863A
Other languages
French (fr)
Other versions
FR2399537B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch Power Tools GmbH
Original Assignee
Hawera Probst GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hawera Probst GmbH filed Critical Hawera Probst GmbH
Publication of FR2399537A1 publication Critical patent/FR2399537A1/en
Application granted granted Critical
Publication of FR2399537B1 publication Critical patent/FR2399537B1/fr
Granted legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
    • E21B10/445—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts percussion type, e.g. for masonry
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/89—Tool or Tool with support
    • Y10T408/909—Having peripherally spaced cutting edges
    • Y10T408/9095—Having peripherally spaced cutting edges with axially extending relief channel
    • Y10T408/9097—Spiral channel

Abstract

Foret à roches, en particulier pour perforatrices à percussion et à marteau, comprenant des tranchants et au moins une gorge d'évacuation des poussières de forage limitée en direction axiale par une nervure disposée en hélice autour de l'axe du foret et dont l'une des surfaces latérales constitue une surface d'appui pour les poussières qui se raccorde au fond de la gorge. Le fond de la gorge d'évacuation de poussière 2, 3 s'étend en ligne droite depuis la surface d'appui en formant un angle aigu avec l'axe 4 du foret jusqu'à la surface de dos de la nervure 5, 6. Le rapport de la largeur N, mesurée suivant l'axe du foret, de la gorge d'évacuation de poussières 2, 3 à la largeur F du dos de la nervure 5, 6 est supérieur à 5 : 1.Rock drill, in particular for percussion and hammer drills, comprising cutting edges and at least one groove for evacuating drilling dust limited in the axial direction by a rib arranged in a helix around the axis of the drill and of which the one of the side surfaces constitutes a bearing surface for dust which connects to the bottom of the groove. The bottom of the dust evacuation groove 2, 3 extends in a straight line from the bearing surface at an acute angle with the axis 4 of the drill bit to the back surface of the rib 5, 6 The ratio of the width N, measured along the axis of the drill, of the dust evacuation groove 2, 3 to the width F of the back of the rib 5, 6 is greater than 5: 1.

FR7822863A 1977-08-04 1978-08-02 ROCK FOREST Granted FR2399537A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2735227A DE2735227C2 (en) 1977-08-04 1977-08-04 Rock drill

Publications (2)

Publication Number Publication Date
FR2399537A1 true FR2399537A1 (en) 1979-03-02
FR2399537B1 FR2399537B1 (en) 1983-10-21

Family

ID=6015646

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7822863A Granted FR2399537A1 (en) 1977-08-04 1978-08-02 ROCK FOREST

Country Status (10)

Country Link
US (1) US4210215A (en)
JP (1) JPS5428203A (en)
BR (1) BR7804996A (en)
CH (1) CH629987A5 (en)
DE (1) DE2735227C2 (en)
DK (1) DK338278A (en)
FR (1) FR2399537A1 (en)
GB (1) GB2001878B (en)
MX (1) MX146619A (en)
NL (1) NL7808189A (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK152555C (en) * 1985-04-01 1988-08-01 Joran Bor A S STONE DRILL, ISAIR FOR HAMMER DRILLING MACHINES
DE3526162A1 (en) * 1985-07-22 1987-01-22 Black & Decker Inc Hammer drill as well as hammer-drill tool
US5035552A (en) * 1988-09-29 1991-07-30 Lysenko Viktor G Twist drill for deep hole drilling
DE3834675A1 (en) * 1988-10-12 1990-04-19 Hawera Probst Kg Hartmetall DRILLING TOOL
NL8821044A (en) * 1988-10-21 1990-10-01 Zubkov Alexei Vladimirovich SPIRAL DRILL.
US5265688A (en) * 1990-04-09 1993-11-30 Hilti Aktiengesellschaft Rock drill
US5040620A (en) * 1990-10-11 1991-08-20 Nunley Dwight S Methods and apparatus for drilling subterranean wells
US5382121A (en) * 1993-09-02 1995-01-17 Bicknell; David P. Drill bit for use in concrete and asphalt
DE4338667A1 (en) * 1993-11-12 1995-05-18 Hilti Ag Drilling tool
TW299385B (en) 1994-12-12 1997-03-01 Black & Decker Inc Cutting tools for drilling concrete, aggregate, masonry or the like materials
US5918105A (en) * 1994-12-12 1999-06-29 Black & Decker Inc. Cutting tools for drilling concrete, aggregate, masonry or the like materials
DE19522033A1 (en) * 1995-06-17 1996-12-19 Hilti Ag Process for producing rotary drilling tools
US5641028A (en) * 1995-08-10 1997-06-24 Black & Decker Inc. Drill bit with debris conveying flute
DE19650487A1 (en) 1996-12-05 1998-06-10 Hilti Ag Drilling tool
FR2760783B1 (en) * 1997-03-17 1999-07-30 Smf Int ELEMENT OF A ROTARY DRILL ROD TRAIN
USD408424S (en) * 1998-03-23 1999-04-20 Schmotzer Norman H Wood drill
USD419575S (en) * 1999-01-07 2000-01-25 Kouvato, Inc. Drill bit
US6457916B2 (en) 1999-11-15 2002-10-01 Insty-Bit, Inc. Locking quick-change chuck assembly
US6561523B1 (en) 1999-11-18 2003-05-13 James L. Wienhold Automatic tool-bit holder
USD430584S (en) * 1999-12-07 2000-09-05 Kouvato, Inc. Drill bit
US6588994B2 (en) 2000-05-17 2003-07-08 James L. Wienhold Drill bit tail
EP1475510B1 (en) 2003-05-09 2010-12-22 Robert Bosch Gmbh Drill
US7861807B2 (en) * 2008-12-03 2011-01-04 Black & Decker Inc. Drill bit including one piece cutting head
EP2502708B1 (en) 2011-03-22 2017-02-01 Black & Decker Inc. Chisels
USD734792S1 (en) * 2013-03-15 2015-07-21 Black & Decker Inc. Drill bit
USD737875S1 (en) * 2013-03-15 2015-09-01 Black & Decker Inc. Drill bit
US9333564B2 (en) 2013-03-15 2016-05-10 Black & Decker Inc. Drill bit

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US335469A (en) * 1886-02-02 Eugene moeeau
US2045725A (en) * 1935-04-29 1936-06-30 Richardson Dean Royden Rock and coal auger
US2084737A (en) * 1935-07-05 1937-06-22 William J Neumann Reamer
US2859645A (en) * 1957-04-05 1958-11-11 Cleveland Twist Drill Co Drilling bit for construction work
DE1291707B (en) * 1965-03-13 1969-04-03 Hawera Probst Kg Hartmetall Rock drill
DE1602003B1 (en) * 1966-06-08 1971-03-11 Netherlands Tool Mfg Co Rock drill
DE1927754C3 (en) * 1969-05-30 1978-12-14 Hawera Probst Gmbh + Co, 7980 Ravensburg Rock drill
DE7043488U (en) * 1970-11-25 1971-04-15 Reitholdt H As ROCK DRILLS FOR IMPACT DRILLING MACHINES
DE2059232B1 (en) * 1970-12-02 1972-03-09 Werkzeugbau Gmbh Rock drill
DE2159728A1 (en) * 1971-12-02 1973-06-07 Heller Geb HAMMER DRILL

Also Published As

Publication number Publication date
GB2001878A (en) 1979-02-14
BR7804996A (en) 1979-05-22
US4210215A (en) 1980-07-01
DE2735227A1 (en) 1979-02-15
NL7808189A (en) 1979-02-06
FR2399537B1 (en) 1983-10-21
JPS5428203A (en) 1979-03-02
CH629987A5 (en) 1982-05-28
DK338278A (en) 1979-02-05
GB2001878B (en) 1982-06-30
DE2735227C2 (en) 1983-10-27
MX146619A (en) 1982-07-15

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Legal Events

Date Code Title Description
ST Notification of lapse